Re: Strange memory usage reporting

From: Ingo Oeser
Date: Wed Aug 27 2003 - 08:10:05 EST


Hi,

On Tue, Aug 26, 2003 at 06:03:14PM +0100, Hugh Dickins wrote:
> Which is the driver involved? Though it's not wrong to give do_no_page
> a Reserved page, beware of the the page->count accounting: while it's
> Reserved, get_page or page_cache_get raises the count, but put_page
> or page_cache_release does not decrement it - very easy to end up
> with the page never freed.

Why is this so asymetric? I would understand ignoring these pages
in the freeing logic, but why exclude them also from refcounting?

Regards

Ingo Oeser
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